Cooking-range.



K. LUGER-HEFEL. COOKING RAlTG-L.A APPLIUATION FILED AUG. z3, 1907.

v 899,254. Patented sept.22,19o8.

4 SHEETS-SHEET 1.

ssssssssssssssssssssssssssssssss c.

- K. LUeBR-HBPBL.

COOKING RANGE. APPLIUATION FILED AUG. 2s, 1907.

Patented Sept. 22, 1908.

4 SHEETS-SHEET 2.

K. LUGER-HEPEL. COOKING RANGE. APPLICATION FILED AUG. 23,1907.

Patented Sept. 22, 1908.

4 SHEETS-SHEET 3.

K. LUGBR-HEFEL.

COOKING RANGE. 'APPLICATION FILED AUG. '23 1907.

Patented Sept. 22, 1908.

4 SHEETS-SHEET 4.

@gaf

Z @@JQZ yy Y KATHE LUGER-HEFEL, OF DORNBIRN, AUSTRIA-HUN GARY.

voooxINor-RANGE.

Specification of Letters Patent.

Patented Sept. 22, 1908.

,A Application filed August 23, 1907. Serial No. 389,825.

To all whom it may concern:

Be it known that I, KATHE LUGER-HEFEL, ne KATHARINA HEFEL, a subject ofthe Emeror of Austria-Hungary, residing at Dornhirn, in the Duchy of Vorarlberg, Empire of Austria-Hungary, have invented certain new and useful Improvements in Cooking-R anges, of which the iollowing is a specification, reierence being had to the drawings iorming'a part thereof.

These improvements relate to a double cooking range and their object is to economize fuel, to reduce radiation, and to so construct the range that the cost of cooking is equally cheap for a small or large out ut.

The improved range is shown in t e accompanying drawings in which,

Figure 1 represents a front elevation. Fig.

2 a cross section along line L M Fig. 8.

' section along line I-K, Fig. 3.

Fig. 3 a section along lines A-B Fig. 7 and C-D Fig. 8. Fig. 4 a cross section along line PR, Fig. 8. Fig.' 5- a similar section along line N-O, Fig. 8. Fig. 6 a horizontal Figs. 7 and 8 similar sections along lines E-F and G-H respectively, Fig. 3.

a is the hearth or fireplace built of brick and furnished with a heating chamber or oven c, the dampers i, y', l1, and the water tank or the boiler l. Another part of the range furnished with heating chambers or ovens d and e projects above the level of the hearth.

The products of combustion of the fuel on the grate pass through three dierent conduits or iiues and their direction is indicated in the drawings by arrows numbered I, Il and Ill. The air enters the iire chamber through multiple air inlets in the doors ofthe iire box and ash pit. The iirst iiue l leads products of combustion backwards from the' grate to the back of the .range Fig. 8, passes them underneath the oven d and allows them to ascend sidewise passing between the chambers d and e, and finally over the chamber e into the chimney or main flue or outlet. rlhe second iiue Il Fig. 8 extends laterally from the grate g over the oven c to the boiler Z, the

roducts of combustion assing under the hoiler and sidewise along 1t to the chimney. The third flue III (Figsl 3 and 6) extends downwards from the side of the grate g, the gases passing under the oven c, and underneath the boiler, and meeting here with the products of combustion from the second iiue with which they escape to the chimney. As

longer path than they would without baiiles;

rlhe novel feature of the grate is its duplica- `tion whereby the products of combustion may pass away laterally as well as backwards. A further vadvantage is obtained by making the ovens or equivalents of corrugated sheet inetal so that they oder a larger surface to the gases and cause them to follow a longer path whereby the heat contained in them is better utilized. The corrugated plates s serve the same purposes. The ovens are so arranged that access may be gained to them from the front instead of from the side of the range as hitherto.

In .the chimney flue a draft indicator r is provided which consists of a fan connected with a iinger moving over an index, so that the draft may b e regulated as desired by means oi a damper.

Another novel feature of the range is the construction of the back which, as shown in Fig. 5, is provided with an extension which passes into the next room and may serve as a heating stove. ln summer when it is not intended to use this part of the range it may be cut out by the damper i, lf the range is to be used for a large amount of cooking all three conduits or passages are opened whereby the heat is specially applied to the oven d.-

ln this manner only very little heat will radiate into the room containing the range.

The heating chambers extend through the whole width right to the back of the range. In the oven e food may be kept warm without boiling.

What l claim is:

1. ln a cooking range the combination of a grate having a rear outlet and two lateral outlets with an oven, the rear outlet communicating with a ilue extending adjacent one end of the oven, one of said lateral outlets opening above the grate and communicating with a flue extending over the oven and the other lateral outlet opening at the level of the. grate and communicating with a iiue extending under the oven.

2. In a cooking range the combination of a grate having an outlet at its end and two lateral outlets with an oven one'of said lateral outlets opening above the grate and communicating with a Hue extending across the top of the oven and the other lateral outlet opening at the level of the grate and coniing with a 'flue extending over'the top of the niunieating with a flue extending across the lower oven and the other lateral outlet oomloottom of the oven. 1 lnunoating with a flue extending under the 3. In a cooking range the combination of a bottom of the lower oven.

, 5 grate having an outlet at its end and two lat- In witness whereof I have hereunto set my 1.5

eral outlets with. an upper oven and a lower hand in presence of two witnesses. oven, the outlet at the end of the grate oom- KATHE LUGER-HEFEL. municating with a flue extending under the Witnessess: upper oven and adjacent the end of the lower MARY FALOONER,

10 oven, one of said lateral outlets eonimunicat HERNANDO DE SOTO. 

